CR 16-041 Rule Text

SECTION 4. NR 404.04 (9) (am) 1. a. and b. are created to read:

NR 404.04 (9) (am) 1. a. A reference method based on 40 CFR part 50, Appendix L.

b. An equivalent method designated in accordance with s. NR 404.06 (3) (b).

SECTION 5. NR 404.04 (9) (b) (intro.) and 1. are consolidated, renumbered NR 404.04 (9) (am) 2., and amended to read:

NR 404.04 (9) (am) 2. The PM2.5 standards are attained primary annual standard is met when all of the following are met: 1. The the annual arithmetic mean concentration, as determined in accordance with 40 CFR part 50, Appendix N, is less than or equal to 15.0 12.0 µg/m3, the level designated in par. (a) 1.

SECTION 6. NR 404.04 (9) (b) 2. is renumbered NR 404.04 (9) (am) 3. and amended to read:

NR 404.04 (9) (am) 3. The ninety−eighth primary 24-hour standard is met when the 98th percentile 24-hour average concentration, as determined in accordance with 40 CFR part 50, Appendix N, is less than or equal to 35µg/m3, the level designated in par. (a) 2.

SECTION 7. NR 404.04 (9) (bm) is created to read:

NR 404.04 (9) (bm) Secondary standards. 1. The secondary standards for PM2.5 are 15.0 µg/m3 annual arithmetic mean concentration and 35 µg/m3 24-hour average concentration, measured in the ambient air as PM2.5 by either of the following methods:

a. A reference method based on 40 CFR part 50, Appendix L.

b. An equivalent method designated in accordance with s. NR 404.06 (3) (b).

2. The secondary annual standard is met when the annual arithmetic mean concentration, as determined in accordance with 40 CFR part 50, Appendix N, is less than or equal to 15.0 µg/m3.

3. The secondary 24-hour standard is met when the 98th percentile 24-hour concentration, as determined in accordance with 40 CFR part 50, Appendix N, is less than or equal to 35 µg/m3.

SECTION 8. NR 404.04 (9) (c) is repealed.

SECTION 9. NR 404.04 (9) (Note) is created to read:

NR 404.04 (9) (Note) 40 CFR part 50, Appendices L and N are incorporated by reference in s. NR 484.04 (6g) and (6r), respectively.

SECTION 10. NR 484.04 (6g) and (6r) in Table 2 are amended to read:

NR 484.04 (6g) and (6r) in Table 2

CFR Appendix Referenced

Title

Incorporated by Reference For

(6g)   40 CAR part 50 Appendix L

Reference Method for the Determination of Particulate Matter as PM2.5 in the Atmosphere

NR 400.02 (123e) NR 404.04 (9)

(6r)   40 CAR part 50 Appendix N

Interpretation of the National Ambient Air Quality Standards for PM2.5

NR 404.04 (9) (c)

SECTION 11. EFFECTIVE DATE. This rule shall take effect on the first day of the month following publication in the Wisconsin administrative register as provided in s. 227.22 (2) (intro.), Stats.

SECTION 12. BOARD ADOPTION. This rule was approved and adopted by the State of Wisconsin Natural Resources Board on _______________________.